I use the anywhere app, and, like you, my picture was not showing up. Here is what I just did: open the anywhere app and choose a conversation (any, it doesn’t matter). Then, tap on the avatar of yourself (next to an individual text that you sent). It should open up a contact screen for yourself. Click the little pencil in the upper right. After that, tap the little camera icon below the check mark. Then, select a photo and crop it. Refresh the Anywhere app and you should see your new avatar!